Latest iOS 9.3 Beta Unbricks iPhones Affected by 'January 1, 1970' Date Bug

The most recent beta of iOS 9.3, provided to developers and public beta testers earlier this week, fixes a bug that caused 64-bit iPhones and iPads to be disabled or "bricked" when the date was set to January 1, 1970.

Discovered in mid-February, the "1970" bug occurs whenever an iOS device's date is manually set to 1970, resulting in a continuous reboot cycle. Speculation has suggested the reboot loop is the result of an integer underflow that causes the iPhone to reset the date to the maximum value, a huge number that iOS devices may be unable to process.

With iOS 9.3 beta 4, the date on the iPhone or iPad can't be set beyond December 31, 2000 at 7:00 p.m. ET, which equates to 1/1/01 at 12:00 a.m. GMT. That effectively puts an end to the 1970 bug, which was used to trick some people into bricking their devices.

newdatelimits
The beta also introduces a fix for devices that had been disabled by the bug. As explained on the MacRumors forums, devices stuck in boot loops were able to be restored to working order through a restore using iOS 9.3 beta 4.

This update fixed the 1970 date bug. Had two retail units stuck in boot loops do to some pricks setting the date to 1970 and restoring in DFU mode did not help. But restorting to this BETA update made both devices go back to normal.

Previously, there was no clear fix for devices that had been affected by the bug aside from disconnecting the battery, requiring users to go to the Genius Bar at an Apple retail store or attempt risky self-repairs. Apple promised a fix in an "upcoming software update," which appears to be iOS 9.3.

iOS 9.3 is currently only available to developers and public beta testers, but we may be nearing the end of the beta testing period. Apple has said the software will debut in the spring, and it's likely we will see it launch to the public following the company's rumored March 15 event where it is expected to introduce the iPhone 5se, the iPad Air 3, and new Apple Watch bands.

Tag: iOS 9.3

Top Rated Comments

(View all)
Avatar
57 months ago
Who was the brave on to test that? lol ;)
Score: 3 Votes (Like | Disagree)
Avatar
57 months ago
This makes me curious what date the iPhone would fall back to once it reaches January 19, 2038. Right now, it reverts back to January 1, 1970, but if that's no longer a selectable date, I wonder what would happen.
Score: 3 Votes (Like | Disagree)
Avatar
57 months ago
So they didn't bother to fix the bug, they just prevented users from triggering it.
Score: 2 Votes (Like | Disagree)
Avatar
57 months ago
Finally I can set my phone clock back to our year of the Lord 1107 AD.
Score: 2 Votes (Like | Disagree)
Avatar
57 months ago
Can't imagine how many idiots went into the Apple Stores and set the phones back just to be jerks.
Score: 2 Votes (Like | Disagree)
Avatar
57 months ago
Good job Apple!
Score: 1 Votes (Like | Disagree)

Top Stories

Apple Officially Obsoletes First MacBook Pro With a Retina Display

Wednesday July 1, 2020 3:40 am PDT by
As expected, Apple's first MacBook Pro with a Retina display is now officially classed as "obsolete" worldwide, just over eight years after its release. In a support document, Apple notes that obsolete products are no longer eligible for hardware service, with "no exceptions." This means that any mid-2012 Retina MacBook Pro 15-inch models still out there that require a battery or other...

New Mac Ransomware Found in Pirated Mac Apps

Tuesday June 30, 2020 11:44 am PDT by
There's a new 'EvilQuest' Mac ransomware variant that's spreading through pirated Mac apps, according to a new report shared today by Malwarebytes. The new ransomware was found in pirated download for the Little Snitch app found on a Russian forum. Right from the point of download, it was clear that something was wrong with the illicit version of Little Snitch, as it had a generic installer...

Unreleased iMac With 10-Core Comet Lake-S Chip and Radeon Pro 5300 GPU Shows Up in Geekbench

Wednesday July 1, 2020 10:48 am PDT by
Benchmarks for an unreleased iMac equipped with a 10th-generation Core i9 Intel Comet Lake-S chip and an AMD Radeon Pro 5300 graphics card have surfaced, giving us an idea of what we can expect from a refreshed 2020 iMac. The Geekbench benchmarks, which appear to be legit, were found on Twitter and shared this morning by Tom's Hardware. The iMac in the benchmarks would be a successor to the...

Leaker: Future iPhone Models to Come in 'Exquisite' Thinner Box

Wednesday July 1, 2020 1:57 am PDT by
Leaker L0vetodream this morning posted a tweet corroborating recent rumors that Apple's "iPhone 12" lineup won't come with EarPods or a charger in the box, adding that this will also eventually apply to the existing second-generation iPhone SE. L0vetodream also claims that future iPhone packaging will be "thinner" and "exquisite," which would make sense if Apple's handsets are set to come in ...

Apple's A12Z Under Rosetta Outperforms Microsoft's Native Arm-Based Surface Pro X

Monday June 29, 2020 10:31 am PDT by
Apple's Developer Transition Kit equipped with an A12Z iPad Pro chip began arriving in the hands of developers this morning to help them get their apps ready for Macs running Apple Silicon, and though forbidden, the first thing some developers did was benchmark the machine. Multiple Geekbench results have indicated that the Developer Transition Kit, which is a Mac mini with an iPad Pro chip, ...

Kuo: iPhone 12 Models Won't Include Charger in Box, 20W Power Adapter Will Be Sold Separately

Sunday June 28, 2020 7:56 am PDT by
iPhone 12 models will not include EarPods or a power adapter in the box, analyst Ming-Chi Kuo said today in a research note obtained by MacRumors. This lines up with a prediction shared by analysts at Barclays earlier this week. Kuo said that Apple will instead release a new 20W power adapter as an optional accessory for iPhones and end production of its existing 5W and 18W power adapters...

Rosetta 2 Benchmarks Surface From Mac Mini With A12Z Chip

Monday June 29, 2020 7:48 am PDT by
While the terms and conditions for Apple's new "Developer Transition Kit" forbid developers from running benchmarks on the modified Mac mini with an A12Z chip, it appears that results are beginning to surface anyhow. Image Credit: Radek Pietruszewski Geekbench results uploaded so far suggest that the A12Z-based Mac mini has average single-core and multi-core scores of 811 and 2,781...

Display Analyst Once Again Says No 120Hz ProMotion Display Coming to iPhone 12 Pro

Wednesday July 1, 2020 11:29 am PDT by
Apple's iPhone 12 models will not feature an upgraded 120Hz ProMotion display, according to display analyst Ross Young. Young previously said that Apple would not implement ProMotion technology until it adopted low-power LTPO display technology, a move Apple is not expected to make until 2021. In a tweet shared this morning, Young said that the none of his contacts have been able to...

Apple Seeds Third Betas of iOS and iPadOS 13.6 to Developers [Update: Public Beta Available]

Tuesday June 30, 2020 10:06 am PDT by
Apple today seeded the third betas of upcoming iOS and iPadOS 13.6 updates to developers, three weeks after seeding the second betas and over a month after releasing iOS/iPadOS 13.5 with Exposure Notification API, Face ID updates, Group FaceTime changes, and more. iOS and iPadOS 13.6 can be downloaded from the Apple Developer Center or over the air once the proper developer profile has been...

The New York Times Ends Apple News Partnership and Pulls All Articles

Monday June 29, 2020 11:17 am PDT by
The New York Times today announced that it is pulling out of Apple News, as the service does not "align with its strategy of building direct relationships with paying readers." Starting today, articles from The New York Times will no longer show up in the Apple News app. The news site says that Apple has given it "little in the way of direct relationships with readers" and "little control...